Inditction pxrbnacb



l. L. BROWN.

INDUCTION FURNACE.

APPLICATION FILED uc.22, |920. 1,402,832.

Patented Jan. 10,1922.

UNITEDA STATES;

PATENT OFFICE."

JOHN" L. BROWN, 0]? CATONSVILLE, MARYLAND, ASSIGNOR 0F DANE-TENTE TO W. SMILEY, ONE-TEN-TH T0 JAMES COHEN, ONE-TNTH T0 GRAFTON L. II'CIGERSL4 ALL 0F BALTIMORE. JIARYLAND.

mDUc'rIoN remmen speeaemft'enrmne; :Patented Jan.1o,1922.

Annllcatl'on tiled :December 2i.' 250.182.563.

To all whom it may'cfmcem: .V Y

Be it known thatl JOHN L. BxxowN'e citizen of the United States; residing at etonsville, in the county of Baltimore end State of Maryland, have invented-'certain new and useful Improvements inl Induction Furnace, of whichv the following is'p. speci'- fc'ation. i

invention relates toe processjofvfend xm a puretus for heetin inetels bymeens fof an e eel-.ric4 current, its'objectilsv tolti/" 'complish this4 in a novel rovedrnen'; ner as4 will be pointed.;outin'v tail-bereitgafr..

.By SM2@ t electrically conductive coil connected tog im alternating current Source, inside of :which @dil iS Positioned a bniible' Orf ethr, eletable p holder forv en electricaflly condticv'e mterial toy be heated or reduced. `Thejclfrn lis"I Ymolten metil l,the slime'y ,aow teneri jehmejfo" l l of reffracto'rl'qy;l materiel, and 'the cru'cble; Q e' a'pprots tharfeftol' used .forfr'eltig metals lzthe ps- -s'age of en electric cu'rret elteillrough;sind also' for reducing' other metls in efcrciblje bjr an induced current: obtained b the es segelo'fvthe rmery crrentthrojxg theJ rst mentioned-hatch of metal tlelfseme 'takin'g the, formvjalidf. function o the l in of ani'ndctoneoil'. if: rn order thth hefinventi may beubetter understood, reference ie'.h'e'litfotheA irccompanyn'gclrevving' formi!" eSport of this speciceton, in whrch a sectional andfdio'- grammatic View of they apparatus -is shown. Referring specifically to lthe drowin 5 denotes e su port for n. Crucible or similar containeij or the 'materiel to be heated, seid support being provided with e. chamber Tin which theerucibleseats. The port, aswellas the Crucible ere constructe Y of o. suitable refractory and electrically non-c011- rluctng mnternl.

`the[inventionA the supporto lealso embedded e hol- )v coll Spfofvsome fusible` and electrically conductrvegmater'ial which 'surrounds the chamber 7; "Oxie'fend of the coil 4pro'ects from the` top. of the support and isV ere ficted'witha op rezthejsemed into the'iterio'r of t e c01l. l."The bo om -of the .cell 'extends .from .the heiem. ofthe. su rdrt 5,5and' itigghere revidee with" e 1o .fewlein 'sed 1"'.l`,h,.c9., 'jselit't beglld 'with efeuleezeeihnveemhw;asz'hbwn t jl'fh leiemg'iujprliedilfrohlthe 110i.-

other end hav' an outlet, a, filler of fusible said ends for preventing fusing thereof, the electrically con uctve materiel inthe coil aforesaid body bovini a chamber located i and adapted to enter the same through the axially within the co' and means for sup- 1u inlet, means for passing an electric current porting n said chamber a batch of electrithrough the coil and its ller, the current cally conductive materiel.

connection made at the project' ends In testimony whereof I ain'x mg signature.

of the coil, coo means associate with JOHN L. R WN. 

